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Wang S, Wang S, Wang X, Xu Y, Zhang X, Han Y, Yan H, Liu L, Wang L, Ye H, Li X. Effects of Icariin on Modulating Gut Microbiota and Regulating Metabolite Alterations to Prevent Bone Loss in Ovariectomized Rat Model. Front Endocrinol (Lausanne) 2022; 13:874849. [PMID: 35399950 PMCID: PMC8988140 DOI: 10.3389/fendo.2022.874849] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 02/28/2022] [Indexed: 11/13/2022] Open
Abstract
Postmenopausal osteoporosis (PMOP) is an estrogen deficiency-induced bone loss, which has been shown an association with an altered gut microbiota (GM). Gut microbiota-bone axis has been recognized as a crucial mediator for bone homeostasis. Icariin (ICA) is an effective agent to delay bone loss by regulating the bone homeostasis. Thus, we hypothesize that ICA can prevent bone loss by modulating GM and regulating metabolite alterations. The effects of ICA on bone metabolism improvement in ovariectomized (OVX) rats and their relationships with the GM and fecal metabolites were investigated. Micro-computed tomography (micro-CT) and hematoxylin-eosin (HE) staining showed a typical bone boss in OVX group, while ICA or estradiol (E2) administration exhibited positive effects on bone micro-architecture improvement. The GM such as Actinobacteria, Gammaproteobacteria, Erysipelotrichi, Erysipelotrichales, Enterobacteriales, Actinomycetales, Ruminococcus and Oscillospira significantly correlated to serum bone Gla-protein (BGP), receptor activator of nuclear factor-κB (RANK), receptor activator of nuclear factor-κB ligand (RANKL), osteoprotegerin (OPG) and tartrate resistant acid phosphatase (TRACP). Further t-test revealed a substantial variation of the GM and fecal metabolites in different treatments. Among them, Lachnoclostridium, Butyricimonas, Rikenella, Paraprevolla, Adlercreutzia, Enterorhabdus, Anaerovorax, Allobaculum, Elusimicrobium, Lactococcus, Globicatella and Lactobacillus were probably the key microbial communities driving the change of bile acid, amino acid and fatty acid, thereby leading to an improvement of PMOP. The significant up-regulation of L-Saccharopine, 1-Aminocyclohexadieneacid and linoleic acid after ICA administration suggested important contributions of amino acid and fatty acid metabolisms in the prevention and treatment of PMOP. Taken together, our study has provided new perspectives to better understand the effects of ICA on PMOP improvement by regulating GM and the associated fecal metabolites. Our findings contribute to develop ICA as a potential therapy for PMOP.
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Affiliation(s)
- Shanshan Wang
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Shengjie Wang
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Xiaoning Wang
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- Key Laboratory of Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Yunteng Xu
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Xin Zhang
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Yidan Han
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Hui Yan
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- Basic Discipline Laboratory of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Linglong Liu
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- Basic Discipline Laboratory of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Lili Wang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Hongzhi Ye
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Xihai Li
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
- Key Laboratory of Fujian University of Traditional Chinese Medicine, Fuzhou, China
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Schepper JD, Irwin R, Kang J, Dagenais K, Lemon T, Shinouskis A, Parameswaran N, McCabe LR. Probiotics in Gut-Bone Signaling. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1033:225-247. [PMID: 29101658 PMCID: PMC5762128 DOI: 10.1007/978-3-319-66653-2_11] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The intestinal environment is linked to an array of conditions and diseases, including osteoporosis. Human and animal studies indicate that probiotics can benefit intestinal health and may provide a useful therapeutic to prevent and/or treat bone loss. Probiotics are defined as live microorganisms that when administered in adequate amounts will confer a health benefit on the host. In this review, we will focus on (1) probiotics (definition, history, nomenclature, types), (2) the effects of probiotics on bone health, and (3) mechanisms of probiotic prevention of bone pathologies.
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Affiliation(s)
| | - Regina Irwin
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Jun Kang
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Kevin Dagenais
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Tristan Lemon
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Ally Shinouskis
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Narayanan Parameswaran
- Department of Physiology, Michigan State University, East Lansing, MI, USA.
- Comparative Medicine and Integrative Biology Program, East Lansing, MI, USA.
| | - Laura R McCabe
- Department of Physiology and Department of Radiology, Biomedical Imaging Research Centre, Michigan State University, East Lansing, MI, USA.
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Chand P, Babu YS, Bantia S, Chu N, Cole LB, Kotian PL, Laver WG, Montgomery JA, Pathak VP, Petty SL, Shrout DP, Walsh DA, Walsh GM. Design and synthesis of benzoic acid derivatives as influenza neuraminidase inhibitors using structure-based drug design. J Med Chem 1997; 40:4030-52. [PMID: 9406595 DOI: 10.1021/jm970479e] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A series of 94 benzoic acid derivatives was synthesized and tested for its ability to inhibit influenza neuraminidase. The enzyme-inhibitor complex structure was determined by X-ray crystallographic analysis for compounds which inhibited the enzyme. The most potent compound tested in vitro, 5 (4-acetylamino)-3-guanidinobenzoic acid), had an IC50 = 2.5 x 10(-6) M against N9 neuraminidase. Compound 5 was oriented in the active site of the neuraminidase in a manner that was not predicted from the reported active site binding of GANA (4) with neuraminidase. In a mouse model of influenza, 5 did not protect the mice from weight loss due to the influenza virus when dosed intranasally.
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Affiliation(s)
- P Chand
- BioCryst Pharmaceuticals, Inc., Birmingham, Alabama 35244, USA
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Nutini LG, Sperti GS, Fardon JC, Duarte AG, Freidel JF. Probiotics: nonantigenic tissue fractions in cancer control. J Surg Oncol 1982; 19:233-7. [PMID: 7078176 DOI: 10.1002/jso.2930190412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The effects of probiotics, nonantigenic fractions of normal and malignant cells on tumors, and of similar fractions of normal cells on bacteria and viruses are discussed. The effects are considered in relation to tumor growth and development. In a control group of mice given subcutaneous inoculations only of viable dbrB tumor cells in DBA/1 mice, 100% developed tumors. In a group receiving subcutaneous and intravenous injections of tumor cells and given the tumor fractions, 20% developed lung tumors and 53% developed subcutaneous tumors. In an experiment in which mice received only intravenous injections of viable tumor cells and the tumor fractions, 100% of the controls died with no deaths occurring in the treated group. It is concluded that nonantigenic cellular fractions (probiotics) effective in inducing resistance to some bacterial and viral diseases are effective in inducing resistance to tumors in an inbred strain of mice.
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Fujii A, Shores KE, Bush JH, Garascia RJ, Cook ES. Comparison of stationary phases in reversed-phase TLC for correlation between structure and biological response of probiotics. J Pharm Sci 1978; 67:713-5. [PMID: 641819 DOI: 10.1002/jps.2600670541] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A series of C16,C18 and C20 fatty acids and their ethyl esters and alcohols were investigated as possible stationary phases in reversed-phase TLC for the correlation between structure and biological response (antistaphylococcal activity). Ten probiotics (omego-amino acids and their L-histidine dipeptides) were used as the biologically active compounds. The mobile phase was 70% acetone in water. The best correlations were obtained with hexadecanoic acid (palmitic acid) or cis9,cis-12,cis-15-octadecatrienoic acid, 1-hexadecanol or cis-9-octadeconol, and ethyl hexadecanoate for the fatty acids, their alcohols, and their ethyl esters, respectively. Among all compounds, the following relation was obtained: fatty acids = alcohols greater than ethyl esters greater than white paraffin oil.
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